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Synonyms

jar

1 American  
[jahr] / dʒɑr /

noun

  1. a broad-mouthed container, usually cylindrical and of glass or earthenware.

    a cookie jar.

  2. the quantity such a container can or does hold.


jar 2 American  
[jahr] / dʒɑr /

verb (used without object)

  • jars,
    present (3rd person singular)
  • jarred,
    past participle,  past
  • jarring
    present participle
  1. to have a harshly unpleasant or perturbing effect on one's nerves, feelings, thoughts, etc..

    The sound of the alarm jarred.

  2. to produce a harsh, grating sound; sound discordantly.

  3. to vibrate audibly; rattle.

    The window jarred in the frame.

  4. to vibrate or shake.

  5. to conflict, clash, or disagree.


verb (used with object)

  • jars,
    present (3rd person singular)
  • jarred,
    past participle,  past
  • jarring
    present participle
  1. to cause to rattle or shake.

  2. to have a sudden and unpleasant effect upon (the feelings, nerves, etc.).

    The burglary violently jarred their sense of security.

  3. to cause to sound harshly or discordantly.

noun

  1. a jolt or shake; a vibrating movement, as from concussion.

  2. a sudden unpleasant effect upon the mind or feelings; shock.

  3. a harsh, grating sound.

  4. a discordant sound or combination of sounds.

  5. a quarrel or disagreement, especially a minor one.

jar 3 American  
[jahr] / dʒɑr /

noun

  1. a turn or turning.


idioms

  1. on the jar, partly opened; ajar.

    The window was on the jar.

jar 1 British  
/ dʒɑː /

verb

  1. to vibrate or cause to vibrate

  2. to make or cause to make a harsh discordant sound

  3. (often foll by on) to have a disturbing or painful effect (on the nerves, mind, etc)

  4. (intr) to disagree; clash

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a jolt or shock

  2. a harsh discordant sound

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
jar 2 British  
/ dʒɑː /

noun

  1. a wide-mouthed container that is usually cylindrical, made of glass or earthenware, and without handles

  2. Also: jarful.  the contents or quantity contained in a jar

  3. informal a glass of alcoholic drink, esp beer

    to have a jar with someone

  4. obsolete a measure of electrical capacitance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

jar 3 British  
/ dʒɑː /

noun

  1. (of a door) slightly open; ajar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of jar1

First recorded in 1585–95; Middle English jarre “liquid measure smaller than a barrel,” possibly from Old French jarre, from Spanish or Portuguese jarra, jarro “a jar, pitcher,” or from Medieval Latin jarra, from Old Provençal jarra, from Arabic jarrah “earthen water vessel”

Origin of jar2

First recorded in 1520–30; probably imitative; cf. chirr

Origin of jar3

First recorded in 1665–75; variant of char 3; cf. ajar 2

Explanation

A jar is a smooth-sided, round container that's often made of glass. Jars are useful for storing food, from rice to tea bags to cookies. A wide-mouth jar made of pottery might hold Oreos, and a small, short jar could contain homemade jam. When you put something in a jar, you jar it. Another way to use the verb version of jar is to mean "shock painfully or unpleasantly:" "Every bump we drove over in the old Jeep would jar my whole body." The jar that's a container probably stems from the Middle French jarre, "liquid measure."

Keep Reading on Vocabulary.com

Vocabulary lists containing jar

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A generous three-pack runs $30, or $10 a jar.

From Salon Sep. 20, 2026

I was happy to pay $10 and not risk seeing my bag of chips and jar of salsa sit unopened on the kitchen counter.

From MarketWatch Sep. 11, 2026

Many are now stored in his lab at the museum; he’s also got 1,363 moltings in a jar.

From The Wall Street Journal Aug. 30, 2026

In January 2018, Unilever announced it would close the Carrow plant and the last jar of mustard rolled off the production line in 2019 before the factory was closed in 2020.

From BBC Aug. 28, 2026

Aunt Sera took the jar from Ella's hands and motioned for her to stay put beside her.

From "The Marvellers" by Dhonielle Clayton

At $12.99 for two jars, it had stopped being the sauce from the fancy grocery store and become simply the sauce my mother bought.

From Salon Sep. 20, 2026

The Mint struck its final circulating pennies on Nov. 12, 2025, each one costing 3.69 cents to produce, leaving roughly 300 billion of them in jars, couches and the ashtrays of America.

From MarketWatch Sep. 15, 2026

Archaeologists have found pieces of Greek pottery, as well as rooms and large jars for storing goods from the harbour, discoveries that Karam said showed the ancient city's "lively commercial activity".

From Barron's Aug. 29, 2026

In a whitewashed basement in a village south of Kabul, a dozen young women bustle about, stirring cauldrons of bubbling cherries and plums, and sticking labels on glass jam jars.

From BBC Aug. 14, 2026

Maggots had somehow even found their way into airtight jars.

From "City of the Plague God" by Sarwat Chadda

The unnamed condiment originally mixed herbs and spices with buttermilk and mayonnaise and its popularity with guests led to it being jarred so they could take some home.

From Los Angeles Times Jun. 19, 2026

On Saturday, HiPP recalled its entire range of jarred purées sold in Spar supermarkets in Austria, saying consuming them many be potentially "life-threatening".

From BBC Apr. 19, 2026

Roasted Peppers: Make them homemade or buy them canned or jarred, roasted peppers are filled with flavor that mimics the savory-sweetness of onions.

From Salon Feb. 26, 2026

Scientists, jarred by Beecher’s findings, grew more invested in ruling out the possibility that a drug’s effects were due to placebo.

From Slate Jan. 30, 2026

Every movement of the boat jarred him, and each time he moved, he grew whiter and whiter.

From "Impossible Creatures" by Katherine Rundell

It was all the more jarring because elsewhere Nordqvist had unmistakably fostered that famed European spirit which so often permeates through Solheim and Ryder Cup successes.

From BBC Sep. 14, 2026

“Phil made such an effort to be everyone’s best friend. It’s jarring to have someone perform the role the opposite way,” said Chris Plante, host of the videogame fan podcast “Post Games.”

From The Wall Street Journal Sep. 12, 2026

This shift in focus was jarring for the Post, which had previously published a diversity of viewpoints in its opinion pages while maintaining a largely liberal editorial orientation.

From Salon Aug. 25, 2026

Late in the season, he jammed his left elbow sliding into home plate, jarring loose some bone chips.

From Los Angeles Times Aug. 16, 2026

“Come on,” Elliot said a few minutes later, jarring me from my own thoughts as he stood up.

From "Glitch" by Laura Martin

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